Defensive publication

ABSTRACT

DISCLOSED IS A PROCESS COMPRISING CONTACTING, UNDER DYEING CONDITIONS, IN THE PRESENCE OF AT LEAST 30% O.W.F. SULFAMIC ACID, AN ANIONIC DYE AND AN ANIONIC DYEABLE FIBER OF A BLEND OF 96 TO 93 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE BLEND, OF A POLYETHERESTER AND 4 TO 7 WEIGHT PERCENT, BASED ON THE WEIGHT OF THE BLEND, OF A BASIC NITROGEN CONTAINING POLYMER. USING THE PROCESS OF THE INVENTION, THE ANIONIC DYEABLE FIBER IS DYED TO DEEP SHADES, PREFERABLY AT THE BOIL UNDER ATMOSPHERIC PRESSURE. PREFERABLY THE BLEND COMPRISES ABOUT 95 PERCENT POLYETHERESTER, WHEREIN THE POLYESTER PORTION OF THE POLYETHERESTER IS POLY(ETHYLENE TEREPHTHALATE), AND ABOUT 5 PERCENT OF A COPOLYMER OF 2-VINYLPYRIDINE AND STYRENE.

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Dec.16, 1969, 869 0.G. 687. The abstracts of Defensive Publicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Oiiice makes no assertion as tothe novelty of the disclosed subject matter.

PUBLISHED APRIL 3, 1973 909 O.Gr. 8

T909,011 DYEING PROCESS John R. Schwier, Rte. 6, Kingsport, Tenn. 37660Filed July 18, 1972, Ser. No. 272,836 Int. Cl. D0611 5/00 US. Cl. 8-168No Drawing. 9 Pages Specification Disclosed is a process comprisingcontacting, under dyeing conditions, in the presence of at least 30%O.W.F. sulfamic acid, an anionic dye and an anionic dyeable fiber of ablend of 96 to 93 weight percent, based on the weight of the blend, of apolyetherester and 4 to 7 weight percent, based on the weight of theblend, of a basic nitrogen containing polymer. Using the process of theinvention, the anionic dyeable fiber is dyed to deep shades, preferablyat the boil under atmospheric pressure. Preferably the blend comprisesabout 95 percent polyetherester, wherein the polyester portion of thepolyetherester is poly(ethylene terephthalate), and about 5 percent of acopolymer of 2-vinylpyridine and styrene.

